package com.enjoyfood.utils;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.StrUtil;
import com.enjoyfood.dto.UserDTO;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;
import java.util.concurrent.TimeUnit;

public class RefreshTokenInterceptor implements HandlerInterceptor {

    private StringRedisTemplate stringRedisTemplate;

    public RefreshTokenInterceptor(StringRedisTemplate stringRedisTemplate) {
        this.stringRedisTemplate = stringRedisTemplate;
    }

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String authorization = request.getHeader("authorization");
          if(StrUtil.isEmpty(authorization))
          {
              return true;

          }
        String token=RedisConstants.REDIX_LOGIN_USERNAME+authorization;
        Map<Object, Object> user = stringRedisTemplate.opsForHash().entries(token);
        if(user.isEmpty())
            return   true;
        UserDTO userDTO = BeanUtil.fillBeanWithMap(user, new UserDTO(), false);
        UserHolder.saveUser(userDTO);
        stringRedisTemplate.expire(token,RedisConstants.LOGIN_USER_TTL, TimeUnit.MINUTES);


        return true;


    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        // 移除用户
        UserHolder.removeUser();
    }
}
